主成分分析在确定大学生心功能多指标评价中应用  

Application of Prinoipal-Component Analysis in Multiple-Variable Evaluation of College Students’ Heart Function

作　　者：李承道[1] 查子林[2] 李志彤[2] 史广文[3] 白鸿毅 何洋 

机构地区：[1]山西医学院 [2]山西大学 [3]太原工业大学 [4]山西体育科研所

出　　处：《体育科学》1995年第1期46-50,共5页China Sport Science

摘　　要：介绍了主成分分析原理和方法,应用山西省男、女各220名健康大学生心阻抗血流图11项检测指标,求得反映心搏量,每分输出量及外周阻力三个不同侧面的主成分,以百分位数法确定出三个主成分95%的正常值范围和五个等级的评价标准。全部数据在AST386SX/25计算机实现。Principles and methods of principal-component analysis were introduced in this paper. Three principal components such as stroke volume,cardiac output per minute,and peripheral resistance were obtained by surveying the 11 variables of impedance cardiogram from 220 healthy students in Shanxi province;moreover,the 95% normal value ranges of these components were defined by percentage and their 5-grade evaluation criteria were listed.All data were operated at AST 386 SX/25 computer.

关 键 词：主成分分析 心功能 正常值范围 评价标准 

分 类 号：R540.4[医药卫生—心血管疾病]